A practical introduction to GraphQL for backend engineers. Covers GraphQL fundamentals, REST vs GraphQL, schema design, queries, mutations, subscriptions, Schema Definition Language (SDL), and API tes
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Introduction to GraphQL is a practical, backend-focused course that teaches you how to design, build, and test GraphQL APIs from scratch. This course moves you from understanding what GraphQL is and why it exists to building a working GraphQL server with schemas, queries, mutations, and subscriptions.
You'll begin by understanding what GraphQL is, its core benefits over trad
Master Introduction to GraphQL from fundamentals to advanced concepts
Build real-world projects applying what you've learned
Understand best practices and industry standards
Gain confidence to work on production-level applications
Prepare for technical interviews and career advancement
This chapter provides an overview of the course structure, learning objectives, and the GraphQL skills you will develop by the end of the course.
This chapter introduces GraphQL as a query language and runtime for APIs. You'll learn what GraphQL is, the specific benefits it provides over traditional API approaches, and a direct engineering comparison between REST and GraphQL to understand when each is the right choice.
This chapter walks you through setting up a GraphQL server from scratch. You'll install dependencies, configure the server, define your first GraphQL schema, and walk through the complete structure of a working GraphQL application.
This chapter is the core of the course. You'll go deep into GraphQL schemas — learning types, queries, mutations (create, update, delete), subscriptions, and the Schema Definition Language (SDL). By the end of this chapter, you'll be able to design and implement complete GraphQL APIs.
This chapter covers testing your GraphQL API using GraphQL Playground. You'll execute queries and mutations against your running server, verify your schema implementation, and learn how to debug and validate your API behavior.
This chapter wraps up the course with a comprehensive recap of everything covered — from GraphQL fundamentals through schema design, mutations, subscriptions, and testing — reinforcing the key concepts and next steps for your GraphQL journey.
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“I truly appreciate the high-quality material in this course. The structured lessons, hands-on projects, and clear explanations make learning a great experience. I look forward to future additions and updates! Thanks for your polite and friendly attitude.”
Lyle Christine
A Happy Student from Scotland
“The practical examples and hands-on exercises were particularly beneficial. They not only reinforced the theoretical concepts but also allowed me to apply them in real-world scenarios. The inclusion of best practices and common pitfalls added a practical dimension to the learning process.”
Daniel Tinivella
Software Engineer, Globant
“The course is an excellent resource for beginners. Your explanations of the basics are clear, making it easy for newcomers to grasp. I particularly enjoyed the task management application; it's a practical example that helps solidify the concepts.”
Eshan Shafeeq
Blockchain & Web3 Engineer, Cake Defi
Some programming experience is recommended. Check the course description for specific prerequisites.
This course has 1 hours of content. Complete it at your own pace.
Yes! Upon completion you'll receive a certificate you can share on LinkedIn and your resume.
Yes, all code examples and resources are available for offline access.
Yes — career guidance, resume reviews, and mock interviews are available through the platform.